Finding the Fourth Proportional to 211,043.88, 291,247.88 and 115,551.23
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Solution
The fourth proportional to 211,043.88, 291,247.88 and 115,551.23 is: 159,464.70
Step by Step Solution
- Step 1: Write the proportion equation
211,043.88 : 291,247.88 = 115,551.23 : x - Step 2: Convert to fraction form
211,043.88/291,247.88 = 115,551.23/x - Step 3: Cross multiply
211,043.88x = 291,247.88 × 115,551.23 - Step 4: Simplify right side
211,043.88x = 33,654,048,734.90 - Step 5: Solve for x
x = 33,654,048,734.90/211,043.88 - Step 6: Final answer
x = 159,464.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.